Silicon Laboratories Inc., a leader in high-performance, analog-intensive, mixed-signal ICs, announced it has signed a definitive agreement to acquire Boston-based Ember Corp. for initial consideration of $72 million, subject to an adjustment for certain working capital amounts and potential earn-out consideration. Ember is a late-stage private company offering market-leading silicon, software and development tools for 2.4 GHz wireless mesh networking solutions being deployed in smart energy, connected home, security, lighting, and many other monitoring and control applications.